Interlocking double bottle



FIG. 1 is a front elevation of an interlocking double bottle showing my new design, the rear elevation is a mirror image thereto;

FIG. 2 is a top plan view of FIG. 1;

FIG. 3 is a bottom plan view of FIG. 1; and,

FIG. 4 is a cross sectional view taken along line 4--4 in FIG. 2. 

The ornamental design for an interlocking double bottle, as shown and described. 